java.lang.ClassNotFoundException: org.apache.flume.clients.log4jappender.Log4jAppender
在使用Log4j日志信息放入到Flume时，根据官网 http://flume.apache.org/releases/content/1.9.0/FlumeUserGuide.html 的提示，在Log4j中加入如下配置信息
#... log4j.appender.flume = org.apache.flume.clients.log4jappender.Log4jAppender log4j.appender.flume.Hostname = example.com log4j.appender.flume.Port = 41414 log4j.appender.flume.UnsafeMode = true # configure a class's logger to output to the flume appender log4j.logger.org.example.MyClass = DEBUG,flume #...
并在root中申明了flume
log4j.rootCategory=INFO, console,flume
但在运行的时候出现如下报错
一脸蒙蔽，系统提示我缺少一个jar包。然后重新阅读官方文档时发现，官方给出了提示
根据提示，在Maven仓库中添加依赖
<dependency>
<groupId>org.apache.flume.flume-ng-clients</groupId>
<artifactId>flume-ng-log4jappender</artifactId>
<version>1.9.0</version>
</dependency>
重新运行即可